[Solved] Which of the following is true about virtual functions in C++?

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Q.	Which of the following is true about virtual functions in C++?
A.	Virtual functions are functions that can be overridden in derived class with the same signature.
B.	Virtual functions enable run-time polymorphism in a inheritance hierarchy.
C.	If a function is ‘virtual’ in the base class, the most-derived class implementation of the function is called according to the actual type of the object referred to, regardless of the declared type of the pointer or reference. In non-virtual functions, the functions are called according to the type of reference or pointer.
D.	All of the above
Answer» D. All of the above

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